由一个调的,波纹金属有机框架产生的内在宽带白光发射
Dorina F Sava1, Lauren E S Rohwer, Mark A Rodriguez
1Surface and Interface Sciences Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.
Journal of the American Chemical Society
|February 21, 2012
概括
研究人员开发了一种新的金属有机框架 (MOF),可发射宽带白光,适用于固态照明 (SSL). 这种材料的材料.
科学领域:
- 材料科学 材料科学 材料科学
- 化学 化学 化学
- 固态物理 固态物理
背景情况:
- 开发高效的白光发射器对于固态照明 (SSL) 是至关重要的.
- 金属有机框架 (MOF) 为先进的材料应用提供可调节的特性.
研究的目的:
- 报告一种新型的三周期金属有机框架 (MOF) 作为单元白光发射器.
- 在这个MOF中,研究控制光发射的结构-属性关系.
- 为了证明对SSL应用程序调整MOF光学属性的潜力.
主要方法:
- 一个具有 (3,4) 连接拓的新型三周期MOF的合成.
- 结构特征 (波纹,相互透) 和发光性质的实验性表征.
- 辐射光谱的计算模拟与实验数据相关联.
- 在框架内与Eu(3+) 进行协同兴奋剂以调整光学特性.
主要成果:
- 这种新型的MOF显示出单个组件的宽带直接白光发射.
- 结构特征,波纹和相互透,驱动观察到的发光.
- 模拟和实验辐射光谱显示出良好的相关性,为SSL实现了优化的颜色特性.
- Eu(3+) 协同兴奋剂成功调整了排放,显著改善了颜色特性.
结论:
- 报告的MOF是下一代固态照明的有希望的候选者.
- 该研究强调了MOF结构设计对于定制光学功能的重要性.
- 这项工作为通过合理的框架内兴奋剂设计先进的发光材料开辟了新的途径.
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